In some embodiments, the present invention may include, for example, systems, devices, and methods for power generation using a permanent magnet and/or an electro magnet installed on a twisted band wheel or wheels and/or installed on stationary discs and plates. Due to magnetic field forces for example between the stationary discs and the twisted band, the twisted band may be driven to move (e.g., rotate), rotation of the twisted band is optionally transferred by an axle to a generator.

In some embodiments, the present invention may include, for example, systems, devices, and methods for power generation using a permanent magnet and/or an electro magnet installed on a twisted band wheel or wheels and/or installed on stationary discs and plates. Due to magnetic field forces for example between the stationary discs and the twisted band, the twisted band may be driven to move (e.g., rotate), rotation of the twisted band is optionally transferred by an axle to a generator.

A machine system includes a shaft, a first rotor, a first stator, a second rotor, a second stator, a first, first-phase coil and a second, first-phase coil of a first stator winding, a first, second-phase coil and a second, second-phase coil of a second stator winding, and a first, third-phase coil and a second, third-phase coil of a third stator winding wound about the first stator, a first, first-phase coil and a second, first-phase coil of a fourth stator winding, a first, second-phase coil and a second, second-phase coil of a fifth stator winding, and a first, third-phase coil and a second, third-phase coil of a sixth stator winding wound about the second stator, and an inverter drive system. The stator windings are configured to provide a torque and a suspension force under control of an inverter drive system consisting of only three inverters.

A machine system includes a shaft, a first rotor, a first stator, a second rotor, a second stator, a first, first-phase coil and a second, first-phase coil of a first stator winding, a first, second-phase coil and a second, second-phase coil of a second stator winding, and a first, third-phase coil and a second, third-phase coil of a third stator winding wound about the first stator, a first, first-phase coil and a second, first-phase coil of a fourth stator winding, a first, second-phase coil and a second, second-phase coil of a fifth stator winding, and a first, third-phase coil and a second, third-phase coil of a sixth stator winding wound about the second stator, and an inverter drive system. The stator windings are configured to provide a torque and a suspension force under control of an inverter drive system consisting of only three inverters.

The present invention relates to a rotor of motor, and more particularly, to a 2-segment quasi-Halbach rotor of motor that includes a radial magnet and a circumferential magnet which are Halbach-arrayed and a back iron providing a flux to reduce a thickness of the magnet and acquire high air-gap flux density.

Provided are embodiments for a method and a hybrid axial/radial motor. Embodiments can include a central rotor that includes an axial segment, a first radial segment, and a second radial segment, wherein the first radial segment extends axially from a first side of the axial segment and the second radial segment extends axially from a second side of the axial segment, wherein the first side is opposite the second side. Embodiments can also include a stator adapted to receive the first radial segment or the second radial segment of the central rotor.

An axial gap motor includes a rotor configured to rotate around a rotation axis and a stator disposed to be opposed to the rotor across a gap in an axial direction parallel to the rotation axis. The rotor includes a hub, an annular rim located on the outer side of the hub and holding a permanent magnet, a coupling section coupling the hub and the rim and including a recess having a first opening opened on a surface facing one end side in the axial direction, a first plate member disposed on the one end side of the coupling section and covering at least a part of the first opening in plan view from the axial direction, and a member disposed in the recess and having density lower than the density of the coupling section.

An axial gap motor includes a rotor configured to rotate around a rotation axis and a stator disposed to be opposed to the rotor across a gap in an axial direction parallel to the rotation axis. The rotor includes a hub, an annular rim located on the outer side of the hub and holding a permanent magnet, a coupling section coupling the hub and the rim and including a recess having a first opening opened on a surface facing one end side in the axial direction, a first plate member disposed on the one end side of the coupling section and covering at least a part of the first opening in plan view from the axial direction, and a member disposed in the recess and having density lower than the density of the coupling section.

A motor stator assembly, a synchronous motor and a passenger transport device are provided by the present disclosure. The motor stator assembly includes: a stator base disposed axially around a motor drive shaft, the stator base having a receiving space and two stator end faces, and the receiving space being disposed between the two stator end faces and disposed along a circumferential outer side of the stator base; and a plurality of coil assemblies each inserted in the receiving space in a radial direction of the stator base. According to the motor stator assembly, the synchronous motor and the passenger transport device of the present disclosure, by providing a plurality of coil assemblies inserted in the stator base, the maintenance or replacement can be performed as needed, the maintenance is convenient, and less time-consuming, and also has reliable performances.

Conventional axial flux motors typically include multiple rotors and stators resulting in a larger and heavier motor. Additionally, conventional axial flux motors include a housing to protect the rotors and stators, but the housing is often difficult to seal from the environment leading to risks of contaminants (e.g., dirt, water) infiltrating the motor and causing failure over time. The present invention overcomes these limitations by disclosing an axial flux motor with a single rotor and two stators. The use of a single rotor reduces the size and weight of the motor. An inboard housing and an outboard housing mechanically support the two stators and are joined together to define an interior cavity. A ring seal is disposed between the two housings to ensure the interior cavity is sealed. Additionally, the two stators may actuate multiple degrees of freedom (DOF) including the rotation of a wheel and actuation of a suspension.